EP 0290807 A3 19900321 - HYDROSOLUBLE COPOLYMERS, PROCESS FOR THEIR PREPARATION AND THEIR USE
Title (en)
HYDROSOLUBLE COPOLYMERS, PROCESS FOR THEIR PREPARATION AND THEIR USE
Publication
Application
Priority
DE 3713347 A 19870421
Abstract (en)
[origin: EP0290807A2] Water-soluble copolymers having a K value of from 8 to 100 (determined by the method of H. Fikentscher in aqueous solution of its sodium salt at 25 DEG C, a pH of 7 and a polymer concentration of the sodium salt of 1% by weight) which, in polymerised form, contain a) from 99 to 15 mol% of at least one monoethylenically unsaturated C3- to C6-monocarboxylic acid, b) from 0.5 to 84.5 mol% of at least one monoethylenically unsaturated C4- to C6-dicarboxylic acid, c) from 0 to 20 mol% of one or more hydroxyalkyl esters of monoethylenically unsaturated C3- to C6-carboxylic acids having 2 to 6 carbon atoms in the hydroxyalkyl group, d) from 0 to 30 mol% of other water-soluble, monoethylenically unsaturated monomers which are copolymerisable with a), b) and c), e) from 0.5 to 15 mol% of at least one comonomer containing at least two ethylenically unsaturated, non-conjugated double bonds derived from esters obtainable by esterification of (e1) monoethylenically unsaturated C3- to C6-monocarboxylic acids with (e2) polyhydric C2- to C6-alcohols, polyalkylene glycols, polyglycerols and monohydric monoethylenically unsaturated C3- to C6-alcohols, the polymer segments linked to one another via units of e) and comprising units of monomers a) to d) being polymer segments having a molecular weight (weight average) of at most 15,000, and are used to coat seed.
IPC 1-7
IPC 8 full level
A01C 1/06 (2006.01); A01N 25/26 (2006.01); C08F 2/10 (2006.01); C08F 20/10 (2006.01); C08F 220/04 (2006.01); C08F 220/20 (2006.01); C08F 222/02 (2006.01); C08F 290/00 (2006.01); C08F 299/00 (2006.01); C08L 101/16 (2006.01)
CPC (source: EP)
A01N 25/26 (2013.01); C08F 220/04 (2013.01)
Citation (search report)
- [XP] FR 2595706 A1 19870918 - PROTEX MANUF PROD CHIMIQ [FR]
- [A] DE 3302496 A1 19840726 - BASF AG [DE]
- [A] DE 3233776 A1 19840315 - BASF AG [DE]
- [A] US 4555557 A 19851126 - FUKUMOTO YASUHISA [JP], et al
- [A] US 4710537 A 19871201 - WALINSKY STANLEY W [US]
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0290807 A2 19881117; EP 0290807 A3 19900321; EP 0290807 B1 19920304; AT E73146 T1 19920315; DE 3713347 A1 19881110; DE 3868688 D1 19920409; ES 2039268 T3 19930916; JP S63278916 A 19881116
DOCDB simple family (application)
EP 88105965 A 19880414; AT 88105965 T 19880414; DE 3713347 A 19870421; DE 3868688 T 19880414; ES 88105965 T 19880414; JP 9471388 A 19880419